Hi all,
I am using BDS2006 to write a service application that creates a
TWSocketServer and waits for connections. When a connection is made,
the client sends requests and the service processes the requests and
returns the results.
This is all being done with LineMode enabled.
I've written a similar module in another application recently and that
went without a hitch.
In this particular case (using code copied from the other application),
in OnDataAvailable for the TWSocketClient I type cast the Sender to a
TWSocketClient and then call ReceiveStr to retrieve the data. This was
resulting in an empty string, despite the fact that by inspecting the
object I could see there is data in the receive buffer. Further
investigation/testing has revealed that I'm getting error 10035
(operation would block) and wondered why this would happen now and not
previously.
The only thing I can think of that I'm doing different is that the
testing is being done on one machine, whereas I don't think I did that
previously. However, I have tested this application with the client on
another machine and it exhibits the same problem.
Another thing I noticed is that if I do:
AnsiString msg = ((TWSocketClient*)Sender)->ReceiveStr();
at the start of the OnDataAvailable event, then I get the data coming
through. But I believe (based on the existing application that works)
that I should be able to typecast the Sender variable first.
Does anyone have any suggestions about what might be going wrong here?
Regards,
Bevan Edwards
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